Although I've however infomiert me in the forum of instar and their website (FAQ) 'how to connect the camera to a Fritz box.
Instar maintains its own forum but you can also contact the hotline.
In the forum as well as the hotline quickly get an answer.
Since you will find almost everything to help.
Problems arose only the replacement of the standard lens to the wide-angle lens 2.2mm, which I ordered.
The new lens has the focus ring (holder of the original lens.
The original lens was in the ring so tightly that it has not worked.
In the forum I notice was given to put the lens ring on the heater that expands the Kuststoff. Was a bit tricky to me.
Have then written to the hotline of the home page and described my problem and asked om could not send a replacement ring me.
And, yes, there are services in Germany: I've got the ring sent for free.
Now I could mount the wide-angle easily.
A little tip,
Lens in turn and then connect the camera and as long continue to rotate until the image is sharp.
Is a little hard because the rings with the lens sits very firmly. But doable.